Protein-Supported RuO2 Nanoparticles with Improved Catalytic Activity, In Vitro Salt Resistance, and Biocompatibility: Colorimetric and Electrochemical Biosensing of Cellular H2O2

References

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title
DOI
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209Protein-Supported RuO2 Nanoparticles with Improved Catalytic Activity, In Vitro Salt Resistance, and Biocompatibility: Colorimetric and Electrochemical Biosensing of Cellular H2O2https://doi.org/10.1021/acsami.0c00778Metal oxideRuO2NP synthesis (BSA-RuO2NPs) supported by bovine serum albumin (BSA).

Materials

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BET
b nanozyme
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209BSA-RuO2NPs7nmTEMAs can be seen in Figure 1C, size distribution analysis of 100 random BSA-RuO2NPs by Gaussian fitting, the particle size has been calculated to be ∼7 nm.710U/g

Kinetics

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vmax 10n
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kcat
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209BSA-RuO2NPsPODTMB0.034mM5.54-7M/s0.8331/s2097M-1 s-1
209BSA-RuO2NPsPODH2O2189.42mM3.76-7M/s0.5731/s2093M-1 s-1

Applications

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209BSA-RuO2NPsmonitoring in situ H2O2 secretion from living MCF-7 cells.H2O2Color2-800μM1.8μM
209BSA-RuO2NPsmonitoring in situ H2O2 secretion from living MCF-7 cells.H2O2E-chem0.4-3850μM0.18μM